package cn.edu.zsc.rbac.service.array;

import cn.edu.zsc.rbac.domain.dto.RoleDto;
import cn.edu.zsc.rbac.domain.entity.Role;
import cn.edu.zsc.rbac.domain.vo.RoleVo;
import cn.edu.zsc.rbac.domain.vo.Result;
import cn.edu.zsc.rbac.service.IRoleService;
import cn.edu.zsc.rbac.service.IUserService;

import java.util.Arrays;

/**
 * 业务层-角色
 *
 * @author 吕淑言
 * @since 2025/4/20 15:29
 */
public class RoleService extends BaseService<Role,RoleDto, RoleVo>implements IRoleService {


    private IUserService userService;
    private static IRoleService singleton;
    private RoleService(){
      data=new Role[DATA_SIZE+1];
      temp=new RoleVo[DATA_SIZE];
    }
    public static IRoleService getInstance(){
        if(singleton==null){
            singleton=new RoleService();
        }
        return singleton;
    }
    @Override
     RoleVo convertToVo(Role role){
        return new RoleVo(role.getId(),role.name,role.dataScope);
    }
    @Override
    Role createEntity(RoleDto dto,int id){
        return new Role(id,dto.name,dto.dataScope);
    }
    @Override
    void updateEntity(RoleDto dto,Role role){
        role.name=dto.name;
        role.dataScope=dto.dataScope;
    }

   @Override
   public Result delete(int id){
        if(!existsById(id)){
            return Result.failure("删除失败，未找到对应数据");
        }
        if(userService==null){
            userService=UserService.getInstance();
        }
        if(userService.roleInUse(id)){
            return Result.failure("删除失败，还有用户具有该角色，不能删除");
        }
       data[id]=null;
       return Result.success("删除成功",null);
   }
}